Krauthammer said Trump’s refusal to condemn violence at his protest-filled campaign rallies was “unconscionable.”

“Are you letting Trump off the hook for this?” Krauthammer asked O’Reilly.

“I’m not,” O’Reilly shot back. “I’ve said he has to readjust his rhetoric.”

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“Come on Bill!” Krauthammer replied. “‘Readjust the rhetoric‘? What kind of weaselly words are those? ‘Readjust the rhetoric‘?”

“I’m trying to deal with this in a fair and balanced way,” O’Reilly said. “So I think we’re going to remove the word ‘weaselly’ from it.”

“I’m not going to rebut the point, I’m going to illuminate the point,” O’Reilly added. “Trump speaks in an emotional manner — he talks like this, ‘bang, bang, bang’ — and he doesn’t have a filter. He doesn’t think sometimes before he speaks, he doesn’t understand that his words can carry threats. But I’m not going to sit here and say he’s responsible for what happened in Chicago.”

O’Reilly said Trump did not condemn his supporter because “he never admits a mistake.”

Earlier in the show, O’Reilly discussed the issue of violence at Trump campaign rallies and last Friday’s incident in Chicago, where unrest forced Trump to cancel a rally.

“Far-left agitators who do not believe in freedom of speech drove a situation that could have become violent,” O’Reilly said. “But the national media spun the story, demonizing Mr. Trump and his supporters, blaming the incident on ‘inflammatory rhetoric’ and ‘racist thought.’”

“Opposition to Trump is not the issue here, true fascism is,” O’Reilly added.

O’Reilly also suggested Trump adapt his style and “tone it down a bit, fully explain his positions, hire advisers who can articulate his vision, and conduct himself with restraint.”